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Fix CPU flag handling when internal interrupts are branched to.

This commit is contained in:
Jukka Heinonen 2003-08-18 19:52:28 +00:00 committed by Alexandre Julliard
parent 6f66c1c75b
commit 215a0d6f3e
1 changed files with 21 additions and 3 deletions
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24
dlls/winedos/interrupts.c
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@ -243,9 +243,9 @@ void WINAPI DOSVM_EmulateInterruptPM( CONTEXT86 *context, BYTE intnum )
context->Eax, context->Ebx, context->Ecx, context->Edx );
DPRINTF( " esi=%08lx edi=%08lx ebp=%08lx esp=%08lx \n",
context->Esi, context->Edi, context->Ebp, context->Esp );
DPRINTF( " ds=%04lx es=%04lx fs=%04lx gs=%04lx flags=%08lx\n",
context->SegDs, context->SegEs,
context->SegFs, context->SegGs, context->EFlags );
DPRINTF( " ds=%04lx es=%04lx fs=%04lx gs=%04lx ss=%04lx flags=%08lx\n",
context->SegDs, context->SegEs, context->SegFs, context->SegGs,
context->SegSs, context->EFlags );
}
if (context->SegCs == DOSVM_dpmi_segments->dpmi_sel)
@ -263,6 +263,11 @@ void WINAPI DOSVM_EmulateInterruptPM( CONTEXT86 *context, BYTE intnum )
}
else if (context->SegCs == DOSVM_dpmi_segments->int48_sel)
{
/* Restore original flags stored into the stack by the caller. */
DWORD *stack = CTX_SEG_OFF_TO_LIN(context,
context->SegSs, context->Esp);
context->EFlags = stack[2];
if (intnum != context->Eip / DOSVM_STUB_PM48)
WARN( "interrupt stub has been modified "
"(interrupt is %02x, interrupt stub is %02lx)\n",
@ -279,6 +284,11 @@ void WINAPI DOSVM_EmulateInterruptPM( CONTEXT86 *context, BYTE intnum )
}
else if (context->SegCs == DOSVM_dpmi_segments->int16_sel)
{
/* Restore original flags stored into the stack by the caller. */
WORD *stack = CTX_SEG_OFF_TO_LIN(context,
context->SegSs, context->Esp);
context->EFlags = (DWORD)MAKELONG( stack[2], HIWORD(context->EFlags) );
if (intnum != context->Eip / DOSVM_STUB_PM16)
WARN( "interrupt stub has been modified "
"(interrupt is %02x, interrupt stub is %02lx)\n",
@ -438,6 +448,11 @@ BOOL WINAPI DOSVM_EmulateInterruptRM( CONTEXT86 *context, BYTE intnum )
/* check if the call is from our fake BIOS interrupt stubs */
if (context->SegCs==0xf000)
{
/* Restore original flags stored into the stack by the caller. */
WORD *stack = CTX_SEG_OFF_TO_LIN(context,
context->SegSs, context->Esp);
context->EFlags = (DWORD)MAKELONG( stack[2], HIWORD(context->EFlags) );
if (intnum != context->Eip / DOSVM_STUB_RM)
WARN( "interrupt stub has been modified "
"(interrupt is %02x, interrupt stub is %02lx)\n",
@ -446,6 +461,9 @@ BOOL WINAPI DOSVM_EmulateInterruptRM( CONTEXT86 *context, BYTE intnum )
TRACE( "builtin interrupt %02x has been branched to\n", intnum );
DOSVM_CallBuiltinHandler( context, intnum );
/* Real mode stubs use IRET so we must put flags back into stack. */
stack[2] = LOWORD(context->EFlags);
}
else
{